/*****************************************************************************
 *                                                                           *
 *  This file is part of the BeanShell Java Scripting distribution.          *
 *  Documentation and updates may be found at http://www.beanshell.org/      *
 *                                                                           *
 *  Sun Public License Notice:                                               *
 *                                                                           *
 *  The contents of this file are subject to the Sun Public License Version  *
 *  1.0 (the "License"); you may not use this file except in compliance with *
 *  the License. A copy of the License is available at http://www.sun.com    * 
 *                                                                           *
 *  The Original Code is BeanShell. The Initial Developer of the Original    *
 *  Code is Pat Niemeyer. Portions created by Pat Niemeyer are Copyright     *
 *  (C) 2000.  All Rights Reserved.                                          *
 *                                                                           *
 *  GNU Public License Notice:                                               *
 *                                                                           *
 *  Alternatively, the contents of this file may be used under the terms of  *
 *  the GNU Lesser General Public License (the "LGPL"), in which case the    *
 *  provisions of LGPL are applicable instead of those above. If you wish to *
 *  allow use of your version of this file only under the  terms of the LGPL *
 *  and not to allow others to use your version of this file under the SPL,  *
 *  indicate your decision by deleting the provisions above and replace      *
 *  them with the notice and other provisions required by the LGPL.  If you  *
 *  do not delete the provisions above, a recipient may use your version of  *
 *  this file under either the SPL or the LGPL.                              *
 *                                                                           *
 *  Patrick Niemeyer (pat@pat.net)                                           *
 *  Author of Learning Java, O'Reilly & Associates                           *
 *  http://www.pat.net/~pat/                                                 *
 *                                                                           *
 *****************************************************************************/
package bsh;

class BSHImportDeclaration extends SimpleNode {

    public boolean importPackage;
    public boolean staticImport;
    public boolean superImport;

    BSHImportDeclaration(int id) {
        super(id);
    }

    public Object eval(CallStack callstack, Interpreter interpreter)
            throws EvalError {
        NameSpace namespace = callstack.top();
        if (superImport) {
            try {
                namespace.doSuperImport();
            }
            catch (UtilEvalError e) {
                throw e.toEvalError(this, callstack);
            }
        }
        else {
            if (staticImport) {
                if (importPackage) {
                    Class clas = ((BSHAmbiguousName) jjtGetChild(0)).toClass(
                            callstack, interpreter);
                    namespace.importStatic(clas);
                }
                else {
                    throw new EvalError(
                            "static field imports not supported yet",
                            this, callstack);
                }
            }
            else {
                String name = ((BSHAmbiguousName) jjtGetChild(0)).text;
                if (importPackage) {
                    namespace.importPackage(name);
                }
                else {
                    namespace.importClass(name);
                }
            }
        }

        return Primitive.VOID;
    }
}
